Fred g



(No Model.)

F. G. UMBAOH.

COMBINED HARROW AND GULTIVATOR.

N0..440,450. Patented Nov. 11,1890.

WITNESSES: //VVENTOH" f k gecz% I cg A TTORNEYS UNITED STATES PATENTOFFIC FRED G. UMBACII, OF ATHENS, GEORGIA.

COMBINED HARROW AND CULTIVATOR.

SPECIFICATION forming part of Letters Patent No. 440,450, dated November11, 1890.

Application filed May 6, 1890- Serial No. 350,831. (No model.)

To all whom it may concern:

Be it known that I, FRED G. UMBACH, of Athens, in the county of Clarkeand State of Georgia, have invented a new and Improved Combined Harrowand Cultivator, of which the following is a full, clear, and exactdescription.

My invention relates to an improved harrow and cultivator, and has forits object to provide a harrow of exceedingly simple and durableconstruction, to which, when desired, a cultivator-tooth may beattached, whereby the implement as drawn forward will perform the dualfunctions of a harrow and a cultivator.

The invention consists in the novel construction and combination of theseveral parts, as will be hereinafter fully set forth, and pointed outin the claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar figures of reference indicatecorresponding parts in all the views.

Figure 1 is a plan view of the implement. Fig. 2 is a side elevationthereof. Fig, 3 is a plan view of the harrow-frame detached from theshank, and Fig. 4 is a side elevation of one of the harrow-teeth removedfrom the frame.

In connection with the device an ordinary plow-beam 10 is employed, tothe rear end of which the usual handles 11 are attached, the forward endof the beam being provided with a suitable clevis 12. The shank 13 iscurved and bifurcated, and is adjustably attached to the beam 10 bymeans of bolts 13", passed through apertures 14, formed in the upperportion of the members of the shank, one bolt being usually locatedimmediately above and the other immediately beneath the beam.

The harrow-frame 15 is made of one piece of metal bent to an angularshape, represent ing approximately two sides of an equilateral triangle.At the apex of the frame the metal is struck up or otherwise manipulatedto form an arch 16, the upper member or face of which. is given adownward inclination in the direction of the front, as is bestillustrated in Figs. 2 and 3.

In the upper face or member of the arch 16 an opening 17 is produced,and a series of threaded apertures 18 is formed in the frame at eachside of the said arch, as is best illus trated in Fig. 3. The apertures18 are adapted for the reception of the upper threaded ends of theharrow-teeth 19, one of which teeth is illustrated in detail in Fig. 4.The bodies of the teeth may be either circular, square, or polygonal incross-section, and the lower ends of said teeth are sharpened orpointed.

It will be observed that by reason of this construction nuts need not beemployed in connection with the teeth, as the said teeth will maintaintheir position in the frame by simply being screwed into the aperturesthereof, as aforesaid.

If in practice it is found desirable, the sides of the frame may beconnected at the rear of the arch 16 by means of a transverse bar 20, inwhich event the bar is also provided with threaded apertures for thereception of additional harrow teeth; but the bar 20 may be omitted, ifso desired.

The under face of the arch of the harr0wframe is adapted to rest uponthe lower front face of the shank 13 and upon the outerface of member ofthe said arch. The upper end of a cultivator-tooth 21 has a bearing,which cultivator tooth inclines downward in the di rection of the front,and the frame and tooth are secured to the shank through the medium of asingle bolt and nut, as shown at 22 in Fig. 2, the bolt being passedthrough the tooth, the opening 17 in the arch of the frame, and throughthe lower end of the shank, the lower extremity of which bolt hasscrewed thereon a suitable nut.

From the foregoing description it will be observed that a combinedharrow and cultivator is obtained of very simple construction andcapable of accomplishing good work, and that if the cultivatontooth isnot required it may be readily and conveniently detached; also, that inthe event of any of the h.arrow teeth becoming broken or otherwiseinjured they may be removed and others substituted.

When a side harrow only is desired, one member of the harrow-frame 15 isdispensed with, and the frame is made to include only one side arm andthe arch.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. The combination, with a shank or standbarrow-frame15, formed of a single piece of metal and provided with the central arch16,

the curved and bifurcated shank secured to 15 'the beam, the teeth 19,secured in apertures in the frame, and the cultivator-tooth secured tothe arch by a bolt passing through the tooth, arch, and shank,substantially as herein shown and described.

FRED G. UMBACH. Witnesses:

H. F. WAYNE, A. H. TALMAGE.

